Automatic resetting-switch.



N0- 830,770. PATBNTED SEPT. 11, 1906. S. H. COUCH.

AUTOMATIC RESETTING SWITCH.

APPLICATION FILED 0012,1905.

2 SHEETSSHEET 1 HIM/use witnesses;

N0- 830,770. PATENTED SEPT. 11, 1906.

s. H. COUCH. AUTOMATIC RESETTING SWITCH.

APPLICATION FILED OOT.2. 1905.

2 SHEETSSHEET 2.

i 51/ itto 021 1 SAMUEL H. COUCHyOF BOSTON, MASSACHUSETTS.

AUTOMATIC RESETTING-ISWITCH- Specification (if Letters Patent.

Patented Sept. 11,'1906.

Application a 0mm '2, 1905. Serial No. 230,919.

\To (Ll/l whom it may concern.-

Be it known that I, SAMUEL H. (Jones, a

citizen of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented a new and useful Automatic Resetting-Switch, of which the following is a specification.

the plungers. T

The object of this invention is to improve that ty e of telephone apparatus wherein different uttons or plungers are employed in calling and connecting, which buttons are automatically restored to inoperative position or reset by replacing the receiver on its hook.

The principal aims in view are to improve and simplify this form of apparatus and to ar range the same so that it will work under all conditions.

The improvements will be best understood by a detailed description.

In the accompanying two sheets of drawings is shown the best form of apparatus now known to me for practicing the invention.

Referring to said drawings and in detail, Figure .1 is a .front elevation of the apparatus. Fig. 2 is a sectional view illustrating the setting apparatus in the position assumed when the receiver is on the hook. Fig. 3 is a sectional view inside the box, showing the position assumed by the parts when the receiver is taken off the hook. Fig. 4 is a side elevation of part of the mechanism illustrated in Fig. 3. Fig. 5 is a front elevation of the setting-plate, and Fig. 6 is a cross-sectional view taken on the line 6 6 of Fig. 3.

Referring to the drawings and in detail, A designates the usual flat base-board, hinged to which is a box B.

The box B-has secured to the front of the same a directory-plate 10, which is preferably made out of metal. This plate has a recess 11, throu h which the buttons or I lun ers project.- he plate is also provide wit a series of slots 12, so that a card or cards can be inserted under the plate and the names of the various subscribers or parties connected to the circuit designated opposite numbers which are cast on the plate to register with e transmitter and the hell are arranged on the box in the usual way and the receiver is hun on the'usual hook 34, which projects throng the side of the box.

Secured to the base-board or back A is a switchboard or foundation 13. This switchboard or foundation is set atsome considerable distance outfrom the plate or back A by means of posts 14.

A hole 15 is cut in the back A, so that the .cable which contains the various wires can be brought into the box, and as the switchboard 13 is set out from the back A a convenient arrangement is provided for the disposition of the wires in back of the board 13.

Secured centrally to the switchboard is. a rib 16, which carries a stop-plate 17 which is made out of insulating material. This stopplate is made in peculiar cross-section, as shown in Fig. 6, so as to have two ribs 18 and 19 on each side, which form stops for the springs hereinafter described.

Secured near the edges of the switchboard 13 are plates 20 20, which carry the contactsprings. Each set of these contact-springs is made up as follows: A strip of insulation 21 is first placed on one (if the plates. Then a contact-piece 22 for the line-wire is placed thereon. Then a spring 23 is placed on the contact-piece. Then a piece of insulation 24 is place'on the spring 23. Then a spring 25 is placed on the insulation 24. Then another spring 26 is placed on the spring 25, and the parts 21 to 26, inclusive, are held in place by a washer 27 and screws 28. The spring 23 is extended inwardly in position to engage the inner rib 18 of the stop-plate 17, and the spring 25 is extended inwardly inposition to engage the outer rib 19 of the stoplate 17, as shown at the left in Fig. 6. T e outer spring 26 does not extend in to the stopp ate, but is used to forcibly return the button or plunger hereinafter described to inoperative or normal position. By this arran ement the springs 23 and 25 can be kept un er tension at all times','so that they will not rattle or become deranged. Each switch for each wire is made u in the same way.

Secured to the plates 20 20 are cross-bars 29 29, which-support a plate'BO, which forms a guiding means for t e inner ends of the plungers. Extending out from the plate 30 are four cats 31, which are grooved so that a verticaly-arranged catch-plate 32 can be arranged tohave a vertical movement thereon, as illustrated in Fi 5. The posts 31 carry at their outer 'en s a lunger-guiding plate 320. Fitted in the p ates 30 and 32 are the plungers P Each lun er has a conical or beve ed circular s oul or 17 formed "thereon to cooperate with holes 33 in the catch-plate 32.

When the plunger is pushed inwardly, the

conical shoulder 12 thereon will first lift the catch-plate, allowing any plunger or plun- .the edge said circular shoulder and hold the on its hook will'now .be

the eatc plunger in its pushed-in position, as represented at the right in Fig. 6. This will make contact between the sprin s 23 and 25 and will throw the circuit into the articular wire controlled by the particular p un er.

A particularly unique feature .0 the device is obtained by the recess 11 in the cover or box, which recess is placed in position so that when the box B is closed onto the baseboard A theplungers P will project throu h said recess in position to be operated, and t e plunger-plate 320 will practically form part of the outer surface of the apparatus and close the recess. This allows the placing of all the plungers and the mechanism operated therebyon the base-boardA so that the same does not have to be fitted in any way to the 1 box or cover and so that the opening or closhag of the box or cover does not in any way a cot or derange the mechanism. I

The mechanism for automatically releasing the plungers when the receiver is placed described. The receiver-hook 34 is pivoted and wired up in the usual manner, not necessary to describe at length. The top cross-bar 29 is extended toform supports or the switch 0 erated by the receiver-hook 34. .Pivoted to this extension is a trip ing-lever 35. This lever has at its end a roller 36, of insulating material, against which the receiver-hook 34 bears, a finger keeping the. roller in engagement with the receiver-hook. Pivoted to the short end of the trippin -lever 35 is a gravity catch or pawl 38. T 's pawl has a cam-surface 39, a notch 40, and a weighted arm 41. The cam-surface 39 is erate with a stationary pin 42, projeetin from' the extension of the cross-bar 29. 1% pin 43, which is preferably made square in cross-section, pro ects inwardly from the catch-plate 32. 'Assumin% the receiver to be off the hook, as shown in ig. 3, and then to be placed thereon to depress the receiverhoo the operation is such that the gravity catch or pawl 38 will enga e under the in 43 and will raise the catchrelease any depressed plhnger or plungers. As the gravity-pawl raises the catch-plate 32 the cam-surface .39 thereof will engage the stationary pin 42 and will move to the left so that when-the catchlate has been the pawl will be moved r enough to the left to disengage from the in43, which will allow -plate 32 to op back to its lowest position. This will leave the parts in normal position, so that any plunger or plunsprings 23, 25, an d-26' allows set to 006pate '32, whic will son'io giars canbe pushed in and locked by the catch p ate.

When the receiver is taken off'the hook,v the gravity-pawl swings to the right and engages under the pin 43. This still leaves the parts in normal position, so thatan plunger can be pushed in and held in by the catchplate. The result from this operation is that any lunger can be ushed in no matter whet er the receiver is on or 013' its hook, whereby no mistake can be made in calling and whereb the plungers are onlyreleased and allowe to spring back to normal position when the receiver is placed upon the receiver-hook. It also will be noticed that the entire setting and the tripping mechanism for the plungers works by gravity, so that the use of springs in this mechanism is avoided, whereby the'parts are made very durable and are so arranged that they will not easily get out of order and whereby the return of the catch-plate is always insured after a plunger is released. It also will be noticed that the springs of the switches are arranged flatwise relatively to the plungers, which allows a shallow construction of case. It also will be noticed that the construction ofthe three the springs 23 and 25 to be kept under tension and at the same time allows each spring 26 to return its plunger to normal position. It also, will be noticed that the tripping device is arranged entirel on one part-that is, the extension of the har 29, whereby the same will not get out of adjustment. These points of con- TOO struction have been found to-simplify the apparatus greatly.

The details of the electrical connections are not described, as the same may be arranged in any of the ordinary or approved ways. v

The details and arrangements herein described may be greatly varied without deex ressed in the claims. 1 I

aving full described my invention, what I claim, and desire to secure by Letters Patent of the United States, is I 1. A telephone apparatus comprising a base-board, .a switching apparatus mounted on the base-board, a series of outwardly-pipjecting plungers for o erating the switc g apparatus, a cover or ox hinged to the baseboard and provided with a recess arranged so that when the cover is closed the plungers will project through said recess, and a me-- tallic plate mounted on said cover surrounding said recess and having slots re is'tering with the plungers,so that a card or car s can be inserted under the plate to form .a directory to register with the plungers.

2. A telephone apparatus comprising a vertical fiat base-board, a switchboard connected thereto, posts-for holding said switch-- 'board out from the base-board, a switching apparatus mounted-on said switchboard, a

parting from the scope of my invention as cover, or box hinged to the baseboard, and leading-in wires disposed between the baseboard and the switchboard.

3. I n a telephone apparatus, a switching apparatus comprising a switchboard, a stop. plate made out of insulated material and conneeted thereto and having two ribs, flat springs forming switches, the ends of said springs being set in position to engage the ribs on the stopplate, and meansfor operating said switches the whole arranged so that the springs making up the switches may be kept under tension.

4, In a telephone apparatus, a switchboard, a stop-plate of insulated material connecting thereto and having two ribs on each side, switches disposed at each side of the stop-plate, each switch being made up of two springs set in position to engage said ribs, and means for operating said switches, the whole arranged so thatthe said springs may be kept under tension.

5. A telephone switching apparatus comprising a switchboard, a stop-plate secured thereon and having two ribs, switches each comprising two springs the ends of which are extended to engage said ribs and a third spring which clears said stop-plate, and a plunger engaging each of the third s rings thereby providing for a return of the p unger andat the same time keeping the two contact-sprin gs under tension.

(5. A switching apparatus comprising a pluralit of switches, plungers having conical or beveled shoulders for operating the switches, a sliding catch-plate cooperating with the plungers, and a gravit -paw1 operated from the receiver-hook an arranged toactuate the catch-plate to release the plungers when the receiver is placed on its hook.

7. In a telephone apparatus, a switching device comprising a plurality of switches, plungers having beveled or conical shoulders for operating the same, a catch-plate cooperating with the plungers, and means for operating the catch-plate from the receiver-hook com rising a pivoted lever and a gravitypawl arranged on said lever.

8. In a telephone apparatus, a switching device comprising a plurality of switches, plungers having biweled or conical shoulders for operating the same, a catch-plate cooperating with the plungers, and means for operating said catch-plate from the receiver-hook comprising a pivoted lever a gravity-pawl pivoted on said lever and having a cam-surface and a stationary pin engaging said camsurface.

9. In a telephone ap aratus, a switching device comprising a p urality of switches,

plungers having beveled or conical shoulders for operating the same, a catch-plate cooperating with the plungers, and means for operating said catch-plate from the receiver-hook comprising a pivoted lever, a gravity-pawl pivoted on said lever, and having a cam-surface and a notch, a stationary pin cooperating with said cam-surface, and a pin pro jecting from the catch-plate which drops down into said not-ch when the gravity-pawl releases the same.

10. In a telephone apparatus, a switching device comprising a plurality of switches, plungers having beveled or conical shoulders for operating the same, a catch-plate cooper ating with the plungers, and means for operating the catch-plate from the receiver-hook comprising a pivoted lever having a gravityaw engaging the catch-plate and an insuated roller engaging the receiver-hook.

11. In a telephone apparatus, a switching device comprising a plurality of switches, plungers having beveled or conical shoulders for operating the same, a catch-plate cooperating with the plungers, and means for actuating the catch-plate from the receiver-hook comprising a pivoted lever engagin the receiver-hook, a gravity-pawl pivote on said lever and having a cam-surface, a stationary pin which engages said can1-surface,.and a pin pro ectmg from said catch-plate WhlChsaid pawl engages, the parts being arranged so that when the receiver-hook is depressed the catch-plate will be operated and so that any plunger or plungers can be operatedwhen the receiver-hook is in either position.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

SAMUEL H. coUen.

Witnesses Amnrn S. CUMMINGS, VVM, N. McCoNNELL. 

